222011233 has 4 divisors (see below), whose sum is σ = 222168240. Its totient is φ = 221854228.

The previous prime is 222011201. The next prime is 222011261. The reversal of 222011233 is 332110222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 332110222 = 2 ⋅166055111.

It is a cyclic number.

It is not a de Polignac number, because 222011233 - 2⁵ = 222011201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222011263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76363 + ... + 79216.

It is an arithmetic number, because the mean of its divisors is an integer number (55542060).

Almost surely, 2^222011233 is an apocalyptic number.

It is an amenable number.

222011233 is a deficient number, since it is larger than the sum of its proper divisors (157007).

222011233 is a wasteful number, since it uses less digits than its factorization.

222011233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157006.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 222011233 is about 14900.0413757815. The cubic root of 222011233 is about 605.5151071463.

Adding to 222011233 its reverse (332110222), we get a palindrome (554121455).

The spelling of 222011233 in words is "two hundred twenty-two million, eleven thousand, two hundred thirty-three".